Akademik Veri Yönetim Sistemi
CHEMISTRY AFRICA-A JOURNAL OF THE TUNISIAN CHEMICAL SOCIETY, cilt.9, sa.5, 2026 (ESCI, Scopus)
The environmental impact of the textile industry, particularly the discharge of dye-containing wastewater, remains a critical challenge. This study examines the dye removal efficiency of the ozonation process for two commercial dye formulations: L-Blue PA 2R, Jakazol Black CECL, and their mixture (mix dye). While these specific commercial dyes are widely used, their treatment via ozonation has not been previously detailed in the literature. The process was modeled and optimized using a Box-Behnken Design (BBD) to evaluate the simultaneous effects of pH, ozone dose, and reaction time. ANOVA results confirmed that the quadratic models developed for all dye systems were statistically significant, with all R-2 values exceeding 0.99. Ozone dose was identified as the most influential parameter on the dye removal response. Under optimum conditions, the removal efficiencies for L-Blue PA 2R, Jakazol Black CECL, and the mix dye were 99.86%, 99.40%, and 99.72%, respectively. Total operating costs for treating these dyes were calculated as $10.14, $3.89 and $9.65 per m & sup3;.Findings reveal that while increasing the ozone dose and reaction time significantly enhanced efficiency, the impact of pH was dye-specific. Increasing the pH negatively affected the removal of L-Blue PA 2R and the mix dye, whereas it had a positive effect on Jakazol Black CECL. Consequently, ozonation provides rapid, efficient, and cost-effective dye removal.